The Southern and Eastern National Capital Region of Delhi is experiencing diversified and expanding urbanization as in million-plus cities of the area the urban sprawl activities are more frequent than the urban densification activities. The progressing sprawl of residential and construction sites is transforming the regional ecosystems and hampering the generation of ecosystem services of fundamental importance, i.e. the benefits and services that we get directly or indirectly from the ecosystem functioning. The Costanza et al., (2014) approach shows that the ecosystem services value has decreased at US$ 56 ha⁻¹ year⁻¹ (0.09% per year) and absolute and cumulative losses are estimated US$ 285.4 ha⁻¹ year⁻¹ and US$ 502.8 ha⁻¹ year⁻¹, respectively. The ecosystem service values assessment shows that the ecosystem services like climate regulation and recreation have increased but food production, genetic resources, water supply, soil formation, raw materials and waste treatment have decreased over the time. The use of alternative ecosystem value coefficient shows that the estimated value of the ecosystem service value changed from a low of 0.005% for 1% change in the value of the forest coefficient, to a high of 0.749% for a 1% change in the value of the agricultural land coefficient. For each land use/land cover category, the sensitivity analysis reflects the inelasticity or robustness of the estimated ecosystem value with respect to the value coefficient. Overall, prioritizing the conservation and enrichment of natural and man-made ecosystems of critical value will lead to sustainable development of urban ecosystems.

德里南部和东部国家首都地区正在经历多元化和不断扩大的城市化，因为在该地区的数百万城市中，城市扩张活动比城市密集化活动更加频繁。住宅和建筑工地的不断扩张正在改变区域生态系统并阻碍具有根本重要性的生态系统服务的产生，即我们直接或间接从生态系统功能中获得的利益和服务。Costanza et al., (2014) 方法表明，生态系统服务价值下降了 56 美元^-1 年^-1（每年 0.09%），绝对和累计损失估计为 285.4 美元^-1 年^-1美元502.8 美元^-1 年^-1， 分别。生态系统服务价值评估表明，气候调节和娱乐等生态系统服务有所增加，但随着时间的推移，粮食生产、遗传资源、供水、土壤形成、原材料和废物处理减少。使用替代生态系统价值系数表明，生态系统服务价值的估计值从森林系数值变化 1% 的 0.005% 的低值变化到 1% 的值变化的 0.749% 的高值农业用地系数。对于每个土地利用/土地覆盖类别，敏感性分析反映了估计的生态系统价值相对于价值系数的无弹性或稳健性。全面的，