Sustainable development under population pressure: lessons from developed land consumption in the conterminous U.S.
Sustainable development under population pressure: lessons from developed land consumption in the conterminous U.S.
复制标题
DOI：
10.1371/journal.pone.0119675
复制
发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Mountrakis G
中科院分区：
文献类型：
--
作者：
Grekousis G;Mountrakis G
人口增长将导致世界范围内的显着人为环境变化，通过增加发达国家的土地（DL）消费。DL消费是影响人类和生态系统的重要环境和社会经济过程。在人口密集的城市中，人们已经注意到了DL建模。然而，模拟DL消费应该扩展到非大都市地区，可以说环境后果更显着。在这里，我们研究了美国境内的所有县，并基于卫星衍生产品（2001年国家土地覆盖数据集），我们计算了每个县的相关DL。通过使用2000年人口普查的县级人口数据，我们提出了一个比较研究的DL消费，我们提出了一个模型连接人口与预期DL消费。结果表明，相对低和高消费的县从东向西移动的独特的地理模式。我们还证明，DL消费与人口的关系基本上是线性的，这改变了这样的观点：如果在人口较多的县增加人口，预期的人口增长将导致DL消费较低。增加的DL消耗量与县的起始人口无关，仅取决于该县是否属于大都市统计区（MSA）。在重叠的MSA和非MSA人口范围内，对于MSA县的给定人口，也有大约20平方公里的恒定DL效率增益，这表明从农村到城市县的过渡在较低人口中具有显著更高的效益。此外，我们还分析了DL消费极高或极低的县的社会经济构成。在NMSA和MSA两个县，高DL消费县的黑人/非洲裔美国人人口在统计上较低，贫困率较高，人均收入较低。我们的分析提供了一个基线，以研究进一步的土地消耗战略，在预期不断增长的人口压力。
Population growth will result in a significant anthropogenic environmental change worldwide through increases in developed land (DL) consumption. DL consumption is an important environmental and socioeconomic process affecting humans and ecosystems. Attention has been given to DL modeling inside highly populated cities. However, modeling DL consumption should expand to non-metropolitan areas where arguably the environmental consequences are more significant. Here, we study all counties within the conterminous U.S. and based on satellite-derived product (National Land Cover Dataset 2001) we calculate the associated DL for each county. By using county population data from the 2000 census we present a comparative study on DL consumption and we propose a model linking population with expected DL consumption. Results indicate distinct geographic patterns of comparatively low and high consuming counties moving from east to west. We also demonstrate that the relationship of DL consumption with population is mostly linear, altering the notion that expected population growth will have lower DL consumption if added in counties with larger population. Added DL consumption is independent of a county’s starting population and only dependent on whether the county belongs to a Metropolitan Statistical Area (MSA). In the overlapping MSA and non-MSA population range there is also a constant DL efficiency gain of approximately 20km2 for a given population for MSA counties which suggests that transitioning from rural to urban counties has significantly higher benefits in lower populations. In addition, we analyze the socioeconomic composition of counties with extremely high or low DL consumption. High DL consumption counties have statistically lower Black/African American population, higher poverty rate and lower income per capita than average in both NMSA and MSA counties. Our analysis offers a baseline to investigate further land consumption strategies in anticipation of growing population pressures.
登录
查看更多内容
影响因子：
56.9
作者：
Bettencourt, Luis M. A.
通讯作者：
Bettencourt, Luis M. A.
DOI：
10.1073/pnas.1011163107
发表时间：
2010-11-16
影响因子：
11.1
作者：
DeFries, R.;Rosenzweig, C.
通讯作者：
Rosenzweig, C.
影响因子：
6.7
作者：
Grekousis, George;Manetos, Panos;Photis, Yorgos N.
通讯作者：
Photis, Yorgos N.
影响因子：
9.1
作者：
Alig, RJ;Kline, JD;Lichtenstein, M
通讯作者：
Lichtenstein, M
影响因子：
18.3
作者：
DeFries, Ruth S.;Rudel, Thomas;Hansen, Matthew
通讯作者：
Hansen, Matthew